October 1, 2004
Inside a Conductor
Boundary Conditions at a Conductor/Free space Interface:
Et = 0 and .
Dielectrics in Static Electric Field
where equivalent charge densities
Electric Flux density:
Linear and isotropic medium: where is electric susceptivility.
Boundary Conditions: E1t=E2t (V/m), and D1n - D2n = rs (C/m^2)
Electrostatic Energy needed to assemble a N charge system:
Electrostatic Energy in terms of Field Quantities:
Capacitance in terms of electrostatic field energy: .
System with fixed charges:.
System with fixed potentials: